Fekete G, Virágh K, Aszalós R et al: Landscape and coenological differentiation ... (1998)

Fekete Gábor, Virágh Klára, Aszalós Réka, Orlóczi László
1998
Landscape and coenological differentiation of Brachypodium pinnatum grassland in Hungary.
Coenoses 13: 39-53.
Összefoglaló: 

Secondary Brachypodium pinnatum grasslands are typical in low precipitation areas of Hungary after clearing of the oak forest. These grasslands contain steppe species and shade tolerant forest species in varying proportions. Quantitative results from the Institute of Ecology and Botany research site in the Gödöllő Hills support the proposition of an intense differentiation. For one thing, a spatial-floristic gradient is revealed. Along this, the representation of the forest species and that of the steppe species show opposite trends. A sharp hierarchical group structure is also revealed. This is characterised by the separation of the types dominated by forest species from other types dominated by the steppe species. While the two species groups tend to mutual exlusion under strong coenological and environmental selective pressures, interestingly, no evidence suggests that the species of the Brachypodium pinnatum grassland have an aggressive trait sufficient to endanger biodiversity. The paper presents the detailed results and also description of analytical techniques.

Angol nyelvű összefoglaló: 

Secondary Brachypodium pinnatum grasslands are typical in low precipitation areas of Hungary after clearing of the oak forest. These grasslands contain steppe species and shade tolerant forest species in varying proportions. Quantitative results from the Institute of Ecology and Botany research site in the Gödöllő Hills support the proposition of an intense differentiation. For one thing, a spatial-floristic gradient is revealed. Along this, the representation of the forest species and that of the steppe species show opposite trends. A sharp hierarchical group structure is also revealed. This is characterised by the separation of the types dominated by forest species from other types dominated by the steppe species. While the two species groups tend to mutual exlusion under strong coenological and environmental selective pressures, interestingly, no evidence suggests that the species of the Brachypodium pinnatum grassland have an aggressive trait sufficient to endanger biodiversity. The paper presents the detailed results and also description of analytical techniques.